The examinations in early pregnancy include general physical examination, gynecological examination, blood chorionic gonadotropin and progesterone, ultrasound, electrocardiogram, and comprehensive blood tests. 1. General physical examination: blood pressure, height, weight, etc. to know the baseline blood pressure and body mass index. 2. Gynecological examination: Gynecological examination in early pregnancy is to exclude reproductive tract diseases. 3. Blood chorionic gonadotropin and progesterone: the purpose of which is to determine whether or not you are pregnant and whether or not the fetus is developing well. 4. Ultrasound: To determine if the pregnancy is ectopic, to confirm the number of fetuses, and to confirm the viability of the fetus. In addition, an NT test is performed at 11-13+6 weeks to check the thickness of the nuchal translucency. 5. Comprehensive blood tests: including blood and urine routine, coagulation function, infectious disease series, thyroid function measurement, liver and kidney function, etc. In the early stage of pregnancy, it is necessary to establish a pregnancy health care booklet in time, follow the doctor’s advice and standardize the obstetric examination.